PWM with phase shift and dead time
Dear,
PWM from MSPM0 with dead band (300ns). Frequency 85KHz / 50% dutycycle.
Generating the phase shift between blue/green and yellow/pin2 signals is possible but not working yet. Need to ask TI some help.
I added
PWM_0_INST->COUNTERREGS.PL = 200;
PWM_0_INST->COUNTERREGS.CTR |= (1 << 24)
timx_timer_mode_pwm_center_stop_LP_MSPM0G3507_nortos_ticlang.zip
Hi Laurent,
What is the goal in terms of output PWM waveform here? Is it just to generate two pair of complementary PWM signals that are not aligned?
I added
PWM_0_INST->COUNTERREGS.PL = 200;
PWM_0_INST->COUNTERREGS.CTR |= (1 << 24)
I don't see the added code in the main file of the project you shared. It also appears to be using TIMG0, and phase load is only available in TIMA instances.
The CTRCTL.PLEN bit will also need to be set to enable phase load mode to work.
Best Regards,
Brandon Fisher
Dear Brandon,
My colleagues want to generate the phase shift between blue/green and yellow/pin2 signals. see attached picture.
I have also included the main code
5811.timx_timer_mode_pwm_center_stop_LP_MSPM0G3507_nortos_ticlang.zip
Hi Laurent,
If you want to generate complementary PMW pairs like shown, the TIMA0 instance supports that automatically.
Within Sysconfig, enable the complementary PWM outputs.
With TIMA0 you can generate 4 complementary input pairs, each pair with independent duty cycle.
Best Regards,
Brandon Fisher
